AN4841 Application note - STMicroelectronics
3.1 Filters. The most common digital filters are: • FIR (Finite Impulse Response): used, among others, in motor control and audio equalization • IIR (Infinite Impulse Response): used in smoothing data The IIR filter can be used to implement filters such as Butterworth, Chebyshev, and Bessel. 3.2 Transforms
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